%0 Journal Article %T Cobalt spin states investigation of Ruddlesden-Popper La2−xSrxCoO4, using X-ray diffraction and infrared spectroscopy %A Ghorbani, Tahere %A Kompany, Ahmad %A M.M. Bagheri-Mohgheghi %A M. Ebrahimizadeh %J Journal of Magnetism and Magnetic Materials %@ 0304-8853 %D 2018